Usage & Aftercare

How to Install a Dishwasher

how to install a dishwasher
Written by Jillian Wyatt

Replacing and installing a dishwasher are two different processes. Replacing a dishwasher is simple and does not require specific techniques. But installing a dishwasher requires some rules for proper working because the installation of a dishwasher needs both electricity and water, so there is more danger if one is not following the designated rules. This article is specifically related to the installation of a dishwasher. You are at the right place to learn how to install a dishwasher in simple and easy steps.

Read about: Best Dishwasher 2021

Steps to install a dishwasher

Let us mention some of the important steps to install the dishwasher.

Finding Suitable Place for installation of the dishwasher

The best place to keep a dishwasher is near the sink in the kitchen where power and water supply are present. The cavity should be big enough to keep the dishwasher. If the kitchen has not enough connections of power and water supply, get it done first by authorized people like power supply from electrician and water supply from the plumber. Do not do the electric work yourself if you are not an expert.

Make sure there is adequate pressure of water where a dishwasher is to be installed. Follow the instructions given on the manual to adjust the water pipes to the device. Usually, the exterior wall is the best and most suitable place for keeping the dishwasher. The dishwasher should be adjusted near the supply of hot and cold water but it is not recommended to install it near or below the cooking surface and oven.


Before buying a dishwasher, one should accurately measure the size (length, width, and height) of the cabinet and the dishwasher for reasonable adjustment as well as proper working.


Unbox the dishwasher with a cutter carefully to prevent damage. Handle the dishwasher and beware of the sharp edges. Check all the parts of the dishwasher in the box carefully. Do not drag it on the floor or any hard surface.

After unboxing the dishwasher, put cardboard or a piece of cloth in order to prevent scratches on the floor. You may create a mess on the floor while unboxing so be ready to clear it up afterwards.

Water and power supply:

Before installation of the dishwasher, turn off the water and power supply to avoid damage not only to the device but also the adjacent appliances.

Water pipes and power points are separated in some buildings. They must not be installed in the same cabinet below the sink. The main reason for the separation of power points and water pipes in different cabinets is to prevent electrical shocks or short circuits in case there is a leakage.

Drain requirements:

The distance between the drain lines and the dishwasher should not exceed 10 feet. Do not connect the drain lines to the dishwasher drain pipe to other appliances. The air gap must be present between the dishwasher and the waste line. Fulfil all the specified requirements of drain; otherwise, the entire system may be nonfunctional or full of errors.

U-shaped water pipe:

Must use pipe in U shape while connecting. In the drainpipe, keep the end of the pipe high to prevent threatening and harmful effects that can damage the dishwasher.

Connection of wires:

Must remember when you are going to start the connection of wires, turn off the power supply from the circuit breaker. Connect the parallel wires of the dishwasher with power cable, e.g. white to white. Twist the wires together. Must attach the green screw with the ground wire. Make sure the connection is not loose. Cover the wires under a circuit panel for safety. If the connection is not proper and perfect, it may cause damage.

Connections to the power supply:

The dishwasher will not start working without a power supply. Hence a socket is necessary near the place of the machine. If there is no socket, run a cable near the machine to operate the dishwasher. The socket should have a light so we can quickly check if the dishwasher is working. If you do not have good knowledge about sockets, call an experienced electrician to avoid performing experiments yourself which can be hazardous.

Checking the connections:

Turn on the tap and test all the leaks below the dishwasher. Observe the connections under the sink. Confirm that there is no leakage and error in installation. Check the connections of the power supply.

Now turn on the tap and power supply. Run a whole cycle to wash the dishes. If everything is working in a better way and the dishwasher is working correctly, it means it is ready to use.

Disposal of wastes:

Being a good citizen, it is our moral duty to dispose of all the wastes. Look for the replaced dishwasher and get rid of it properly. It encourages and supports recycling and protects essential materials.

Read about: How to clean a dishwasher

Common Errors during the installation of the dishwasher

There are some common errors during the installation of the dishwasher in the kitchen. One should avoid these errors for the perfect working.

Interlocking Connections:

Make sure there are an interlocking connection and a clamp between drain tubes which is necessary for some dishwashers. Please read and follow the instructions thoroughly that come with it to avoid damage.

Elevation of drain tubes:

Avoid elevation of the drain tube in the base cavity to the highest point, in order to prevent backflow of liquid.


Apply Teflon to all the connections during the installation of the dishwasher to keep everything in place.

Air gap:

An air gap should be present between the pipes of the dishwasher, so the wastage of the sink does not go back to the dishwasher.

About the author

Jillian Wyatt

Jillian Wyatt is a professional chef who specializes in areas of commercial kitchen equipment and safety. She loves sharing her knowledge through her blog. She often writes about hygiene, food, and kitchen related stuff for several top blogs. She often gives advice, tips, and information to everyone through her articles.
Jillian loves communicating and connecting with her readers through emails and comments. She is a passionate writer working on her new blog related to commercial outdoor activities and safety measures.